8 Largest Oil Refineries in the Middle East

From the United Arab Emirates to Saudi Arabia, Kuwait, and Iran, these large-scale facilities process millions of barrels of crude every day, helping to convert raw hydrocarbons into gasoline, diesel, jet fuel, and other refined products used across global markets. 

Their size and output make them central not only to domestic energy security, but also to the wider balance of international oil and gas trade.

Below is a look at eight of the largest oil refineries in the Middle East and the role each one plays in the region’s energy economy.

Ruwais Refinery, United Arab Emirates

The Ruwais Refinery stands as the largest refinery in the Middle East and one of the biggest single-site refining complexes in the world. Operated by ADNOC and located about 240 kilometres west of Abu Dhabi, the facility has a refining capacity of more than 922,000 barrels per day.

Its scale gives the UAE a major advantage in the downstream oil market. Beyond processing crude, Ruwais supports the country’s ability to produce gasoline, diesel, jet fuel, and petrochemical feedstocks at industrial volume. This makes it a core asset in the UAE’s effort to strengthen its position not just as a crude exporter, but also as a value-added energy producer.

Al Zour Refinery, Kuwait

Al Zour Refinery is one of Kuwait’s most ambitious energy projects and among the largest refineries globally. Located roughly 90 kilometres south of Kuwait City, the refinery has a processing capacity of 615,000 barrels per day.

For Kuwait, Al Zour is more than just a large refining facility. It represents a strategic investment in upgrading domestic refining capability and producing cleaner fuels at scale. In economic terms, it gives Kuwait stronger downstream capacity and enhances the country’s ability to compete in export markets where product quality and refining sophistication increasingly matter.

Ras Tanura Refinery, Saudi Arabia

Saudi Aramco’s Ras Tanura Refinery remains one of the kingdom’s most important refining hubs, with a capacity of 550,000 barrels per day. It includes major units such as crude distillation, gas condensate processing, hydrocracking, and catalytic reforming.

Its importance lies in both volume and integration. As part of Saudi Arabia’s wider oil infrastructure, Ras Tanura supports domestic fuel supply while also feeding export markets. In practical terms, it strengthens the kingdom’s ability to manage crude conversion efficiently and maintain its influence across multiple layers of the energy value chain.

SATORP Refinery, Saudi Arabia

The Saudi Aramco Total Refining and Petrochemical Company, known as SATORP, is a joint venture between Saudi Aramco and TotalEnergies. The refinery has a capacity of 460,000 barrels per day and began operations in 2014.

What sets SATORP apart is its full-conversion model, which allows it to maximise output from higher-value refined products and petrochemicals. That gives it a more commercially attractive profile than older refining systems focused largely on basic fuel production.

In a market where margins increasingly favour complex refining and integrated petrochemical output, SATORP reflects the type of infrastructure many oil-producing countries are now prioritising.

Mina Abdullah Refinery, Kuwait

Mina Abdullah Refinery is one of Kuwait’s longest-standing refining assets and remains a major part of the country’s downstream capacity. Established in 1958, the refinery now has a processing capacity of 454,000 barrels per day.

Its continued relevance lies in its ability to refine crude into higher-value, low-sulphur petroleum products such as diesel, kerosene, and gasoline. That matters in an environment where cleaner fuels and stricter product standards are becoming more important in international trade.

For Kuwait, Mina Abdullah remains a foundational asset in maintaining refining scale while adapting to modern fuel requirements.

Persian Gulf Star Refinery, Iran

The Persian Gulf Star Gas Condensate Refinery, located near Bandar Abbas, is one of Iran’s most important downstream assets and is widely recognised as the world’s largest condensate refinery. Its processing capacity is estimated at between 360,000 and 420,000 barrels per day.

Its strategic significance is especially high for Iran because it strengthens local fuel production and reduces reliance on imported refined products. The refinery has played a major role in supporting domestic gasoline supply and improving energy self-sufficiency.

In broader terms, it shows how refining infrastructure can become economically and politically important for countries operating under external pressure or supply constraints.

YASREF Refinery, Saudi Arabia

The Yanbu Aramco Sinopec Refining Company, known as YASREF, is a 400,000-barrel-per-day refinery located in Yanbu Industrial City on Saudi Arabia’s Red Sea coast. It is a joint venture between Saudi Aramco and Sinopec.

YASREF is notable not only for its size, but for its international partnership model and its ability to process heavy crude into more valuable outputs. That makes it strategically important for Saudi Arabia’s refining ambitions and for its broader relationship with major Asian energy markets.

In business terms, it is a strong example of how Gulf producers are using joint ventures to deepen industrial partnerships and extend influence beyond crude exports alone.

SAMREF Refinery, Saudi Arabia

The Saudi Aramco Mobil Refinery Company, or SAMREF, is another major Saudi refining asset located in Yanbu Industrial City. With a processing capacity of more than 400,000 barrels per day, it is one of the largest complex refineries in the region.

SAMREF’s relevance comes from both its technical sophistication and its role within Saudi Arabia’s larger refining ecosystem. Complex refineries like SAMREF are better positioned to produce a wider mix of valuable products and respond more effectively to changing market demand. That makes them particularly important in periods when energy prices, product demand, and regional risks are shifting at the same time.